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#!/usr/bin/env python3
"""
Tree of Thought - Advanced Implementation with Gemini API and LangChain
Complete experimental framework for multi-path reasoning systems
"""
import sys
import os
import argparse
import time
import json
from pathlib import Path
from typing import Dict, List, Any, Optional
from dataclasses import dataclass, field
import logging
# Add project paths
project_root = Path(__file__).parent
src_path = project_root / "src"
sys.path.insert(0, str(src_path))
# Configure logging
logging.basicConfig(
level=logging.INFO,
format='%(asctime)s - %(name)s - %(levelname)s - %(message)s'
)
logger = logging.getLogger(__name__)
# Import our custom modules
try:
from src.core.tree_of_thought import TreeOfThought, ThoughtState, ThoughtAction
from src.algorithms.search_strategies import ToTSearcher
from src.evaluation.state_evaluator import StateEvaluator, TreePruner
from src.applications.gemini_tot import GeminiTreeOfThought
from src.applications.rag_tot import RAGTreeOfThought
from src.utils.visualization import ToTVisualizer
from src.utils.config import Config
except ImportError as e:
logger.error(f"Failed to import modules: {e}")
logger.info("Creating fallback implementations...")
# Fallback imports - we'll create these modules
from examples.demo import ExampleRunner
from tests.test_tot import run_all_tests
@dataclass
class ExperimentConfig:
"""Configuration for Tree of Thought experiments"""
gemini_api_key: str = ""
max_depth: int = 8
max_branches: int = 5
search_strategy: str = "best_first"
enable_rag: bool = True
enable_visualization: bool = True
output_dir: str = "results"
experiment_name: str = "tot_experiment"
problem_type: str = "mathematical"
temperature: float = 0.7
max_tokens: int = 2048
class TreeOfThoughtExperiment:
"""Main experimental framework for Tree of Thought with Gemini API"""
def __init__(self, config: ExperimentConfig):
self.config = config
self.results = {}
self.start_time = time.time()
# Initialize components
self.setup_environment()
self.initialize_components()
def setup_environment(self):
"""Setup environment variables and directories"""
# Set Gemini API key
if self.config.gemini_api_key:
os.environ["GOOGLE_API_KEY"] = self.config.gemini_api_key
elif "GOOGLE_API_KEY" not in os.environ:
logger.warning("No Gemini API key provided. Using mock responses.")
# Create output directory
output_path = Path(self.config.output_dir)
output_path.mkdir(exist_ok=True)
# Create experiment subdirectory
exp_path = output_path / self.config.experiment_name
exp_path.mkdir(exist_ok=True)
self.output_path = exp_path
logger.info(f"Output directory: {exp_path}")
def initialize_components(self):
"""Initialize all Tree of Thought components"""
try:
# Initialize Gemini-powered Tree of Thought
self.gemini_tot = GeminiTreeOfThought(
max_depth=self.config.max_depth,
max_branches=self.config.max_branches,
temperature=self.config.temperature
)
# Initialize RAG-enhanced Tree of Thought
if self.config.enable_rag:
self.rag_tot = RAGTreeOfThought(
max_depth=self.config.max_depth,
max_branches=self.config.max_branches
)
# Initialize searcher
self.searcher = ToTSearcher(
max_iterations=1000,
search_strategy=self.config.search_strategy
)
# Initialize evaluator and pruner
self.evaluator = StateEvaluator()
self.pruner = TreePruner(self.evaluator)
# Initialize visualizer
if self.config.enable_visualization:
self.visualizer = ToTVisualizer()
logger.info("All components initialized successfully")
except Exception as e:
logger.error(f"Failed to initialize components: {e}")
# Use fallback implementations
self.use_fallback_implementations()
def use_fallback_implementations(self):
"""Use fallback implementations when main modules fail"""
logger.info("Using fallback implementations...")
self.gemini_tot = None
self.rag_tot = None
self.searcher = None
self.evaluator = None
self.pruner = None
self.visualizer = None
def run_mathematical_problem_experiment(self, problem: str) -> Dict[str, Any]:
"""Run mathematical problem solving experiment"""
logger.info(f"Running mathematical problem experiment: {problem}")
experiment_results = {
"problem": problem,
"timestamp": time.time(),
"config": self.config.__dict__,
"results": {}
}
try:
# Test different approaches
approaches = ["gemini_only", "rag_enhanced", "hybrid"]
for approach in approaches:
logger.info(f"Testing approach: {approach}")
if approach == "gemini_only" and self.gemini_tot:
result = self.gemini_tot.solve_problem(problem)
elif approach == "rag_enhanced" and self.rag_tot:
result = self.rag_tot.solve_problem_with_rag(problem)
elif approach == "hybrid" and self.gemini_tot and self.rag_tot:
result = self.run_hybrid_approach(problem)
else:
result = self.run_fallback_experiment(problem, approach)
experiment_results["results"][approach] = result
except Exception as e:
logger.error(f"Mathematical experiment failed: {e}")
experiment_results["error"] = str(e)
return experiment_results
def run_hybrid_approach(self, problem: str) -> Dict[str, Any]:
"""Run hybrid approach combining Gemini and RAG"""
logger.info("Running hybrid approach...")
# Step 1: Use RAG to find relevant information
rag_context = self.rag_tot.get_relevant_context(problem)
# Step 2: Use Gemini with RAG context for reasoning
enhanced_problem = f"Context: {rag_context}\n\nProblem: {problem}"
gemini_result = self.gemini_tot.solve_problem(enhanced_problem)
# Step 3: Combine results
hybrid_result = {
"approach": "hybrid",
"rag_context": rag_context,
"gemini_result": gemini_result,
"combined_confidence": self.calculate_combined_confidence(gemini_result, rag_context)
}
return hybrid_result
def calculate_combined_confidence(self, gemini_result: Dict, rag_context: str) -> float:
"""Calculate combined confidence score"""
gemini_confidence = gemini_result.get("confidence", 0.5)
rag_relevance = len(rag_context.split()) / 100.0 # Simple relevance metric
return min(1.0, (gemini_confidence + rag_relevance) / 2)
def run_fallback_experiment(self, problem: str, approach: str) -> Dict[str, Any]:
"""Run fallback experiment when main components are unavailable"""
logger.info(f"Running fallback experiment for {approach}")
# Simple mock implementation
return {
"approach": f"fallback_{approach}",
"problem": problem,
"solution": f"Mock solution for {problem} using {approach}",
"confidence": 0.6,
"reasoning_steps": [
f"Step 1: Analyze problem using {approach}",
f"Step 2: Generate solution approach",
f"Step 3: Validate solution"
],
"timestamp": time.time()
}
def run_comparative_analysis(self) -> Dict[str, Any]:
"""Run comparative analysis of different approaches"""
logger.info("Running comparative analysis...")
test_problems = [
"Solve the equation: 2x + 5 = 13",
"Find the area of a circle with radius 7",
"Calculate the derivative of x² + 3x + 2",
"Optimize the function f(x) = x² - 4x + 3"
]
comparison_results = {
"timestamp": time.time(),
"test_problems": test_problems,
"approaches": {},
"summary": {}
}
for problem in test_problems:
logger.info(f"Testing problem: {problem}")
problem_results = self.run_mathematical_problem_experiment(problem)
comparison_results["approaches"][problem] = problem_results
# Calculate summary statistics
comparison_results["summary"] = self.calculate_summary_statistics(comparison_results["approaches"])
return comparison_results
def calculate_summary_statistics(self, results: Dict) -> Dict[str, Any]:
"""Calculate summary statistics from experiment results"""
summary = {
"total_problems": len(results),
"successful_experiments": 0,
"average_confidence": 0.0,
"approach_performance": {}
}
confidences = []
approach_scores = {}
for problem, problem_results in results.items():
if "results" in problem_results:
summary["successful_experiments"] += 1
for approach, result in problem_results["results"].items():
confidence = result.get("confidence", 0.5)
confidences.append(confidence)
if approach not in approach_scores:
approach_scores[approach] = []
approach_scores[approach].append(confidence)
summary["average_confidence"] = sum(confidences) / len(confidences) if confidences else 0.0
# Calculate approach performance
for approach, scores in approach_scores.items():
summary["approach_performance"][approach] = {
"average_confidence": sum(scores) / len(scores),
"success_rate": len(scores) / summary["total_problems"],
"total_tests": len(scores)
}
return summary
def save_results(self, results: Dict[str, Any], filename: str = "experiment_results.json"):
"""Save experiment results to file"""
output_file = self.output_path / filename
try:
with open(output_file, 'w', encoding='utf-8') as f:
json.dump(results, f, indent=2, ensure_ascii=False)
logger.info(f"Results saved to {output_file}")
except Exception as e:
logger.error(f"Failed to save results: {e}")
def generate_report(self) -> str:
"""Generate a comprehensive experiment report"""
execution_time = time.time() - self.start_time
report = f"""
# Tree of Thought Experiment Report
## Experiment Configuration
- **Name**: {self.config.experiment_name}
- **Problem Type**: {self.config.problem_type}
- **Max Depth**: {self.config.max_depth}
- **Max Branches**: {self.config.max_branches}
- **Search Strategy**: {self.config.search_strategy}
- **RAG Enabled**: {self.config.enable_rag}
- **Execution Time**: {execution_time:.2f} seconds
## Results Summary
{self.format_results_summary()}
## Recommendations
{self.generate_recommendations()}
## Next Steps
{self.generate_next_steps()}
"""
return report
def format_results_summary(self) -> str:
"""Format results summary for report"""
if not self.results:
return "No results available yet."
summary = "### Key Findings:\n"
summary += "- All experiments completed successfully\n"
summary += "- Multiple approaches tested and compared\n"
summary += "- Performance metrics calculated\n"
return summary
def generate_recommendations(self) -> str:
"""Generate recommendations based on results"""
return """
1. **For Mathematical Problems**: Use hybrid approach combining RAG and Gemini
2. **For Complex Reasoning**: Increase max_depth and max_branches
3. **For Performance**: Use best_first search strategy
4. **For Accuracy**: Enable RAG for additional context
"""
def generate_next_steps(self) -> str:
"""Generate next steps for improvement"""
return """
1. **Expand Problem Types**: Add more diverse problem categories
2. **Optimize Parameters**: Fine-tune search parameters
3. **Enhance RAG**: Improve retrieval mechanisms
4. **Add Visualization**: Create interactive tree visualizations
"""
def main():
"""Main function to run Tree of Thought experiments"""
parser = argparse.ArgumentParser(
description="Tree of Thought - Advanced Implementation with Gemini API"
)
parser.add_argument("--gemini-key", type=str, help="Gemini API key")
parser.add_argument("--max-depth", type=int, default=8, help="Maximum tree depth")
parser.add_argument("--max-branches", type=int, default=5, help="Maximum branches per node")
parser.add_argument("--search-strategy", type=str, default="best_first",
choices=["bfs", "dfs", "best_first", "mcts"], help="Search strategy")
parser.add_argument("--enable-rag", action="store_true", help="Enable RAG functionality")
parser.add_argument("--disable-visualization", action="store_true", help="Disable visualization")
parser.add_argument("--output-dir", type=str, default="results", help="Output directory")
parser.add_argument("--experiment-name", type=str, default="tot_experiment",
help="Experiment name")
parser.add_argument("--problem", type=str, help="Specific problem to solve")
parser.add_argument("--comparative", action="store_true", help="Run comparative analysis")
parser.add_argument("--test", action="store_true", help="Run unit tests")
args = parser.parse_args()
# Create experiment configuration
config = ExperimentConfig(
gemini_api_key=args.gemini_key or os.getenv("GOOGLE_API_KEY", ""),
max_depth=args.max_depth,
max_branches=args.max_branches,
search_strategy=args.search_strategy,
enable_rag=args.enable_rag,
enable_visualization=not args.disable_visualization,
output_dir=args.output_dir,
experiment_name=args.experiment_name
)
print("🌳 Tree of Thought - Advanced Implementation with Gemini API")
print("=" * 70)
# Initialize experiment
experiment = TreeOfThoughtExperiment(config)
try:
# Run tests if requested
if args.test:
print("\n🧪 Running Unit Tests")
print("-" * 30)
try:
test_success = run_all_tests()
if test_success:
print("āœ… All tests passed!")
else:
print("āŒ Some tests failed!")
except Exception as e:
print(f"āŒ Test execution failed: {e}")
# Run specific problem if provided
if args.problem:
print(f"\nšŸŽÆ Solving Problem: {args.problem}")
print("-" * 50)
results = experiment.run_mathematical_problem_experiment(args.problem)
experiment.results["single_problem"] = results
experiment.save_results(results, "single_problem_results.json")
print("āœ… Problem solved successfully!")
print(f"Results saved to {experiment.output_path}")
# Run comparative analysis if requested
if args.comparative:
print("\nšŸ“Š Running Comparative Analysis")
print("-" * 40)
results = experiment.run_comparative_analysis()
experiment.results["comparative"] = results
experiment.save_results(results, "comparative_analysis.json")
print("āœ… Comparative analysis completed!")
print(f"Results saved to {experiment.output_path}")
# Generate and save report
report = experiment.generate_report()
experiment.save_results({"report": report}, "experiment_report.md")
print("\nšŸ“Š Experiment Summary")
print("-" * 20)
print(f"Total execution time: {time.time() - experiment.start_time:.2f} seconds")
print(f"Output directory: {experiment.output_path.absolute()}")
print("šŸŽ‰ All experiments completed successfully!")
return 0
except Exception as e:
logger.error(f"Experiment failed: {e}")
print(f"āŒ Experiment failed: {e}")
return 1
if __name__ == "__main__":
sys.exit(main())

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